How do I keep blog entries seperate from each other on the webpage?

I followed the instructions below. It appeared to be working yesterday. Today however, all my posts have been faithfully presented - yet again - on my home page. Despite repeated instructions – the ones that have been advised – not to do this.

(If you want only one post at a time to appear on your home page: 'dashboard' 'settings' 'reading settings' 'Blog pages show at most' type 1 in the box and 'save'.)

There is only one main page in any blog for posts that we can post to and we cannot exclude posts from the main page for posts. By default that page is the front page of the blog.

Pages we bloggers create are static ie. they do not automatically update and are for content that rarely changes. Only the dynamic Categories pages created by the software when we assign Categories to Posts will automatically update.

The front page of the blog by default will display your posts (not pages) in reverse chronological order, with the most recently published post on top. Though there is only one dynamic page in a blog for posts and we cannot post to more than that one page, we can create the appearance that we have posted to more than one page.

Disabling the infinite scroll feature to get rid of the pop-up in the footer results in a "Load More Posts" tab, and you can't disable that "Load More Posts" tab from appearing and have "previous post" and "next post" links, without the Custom Design upgrade. http://en.support.wordpress.com/custom-design/